navigation: initial commit

This commit includes all navigation packages except robot_pose_ekf.
The robot_pose_ekf requires bfl, which we could not provide yet.
vision-opencv: updating to 1.10.11
laser-geometry: updating to 1.5.14

The patch to check for CATKIN_ENABLE_TESTING has been included in
version 1.5.14.
packagegroup-ros-world: adding new recipes
Merge pull request #195 from bulwahn/master

navigation recipes, updates and adding to packagegroup